All Building Materials

54171-LF - 2 1/8" Deep Ceiling Fan Box w/clamps and 10-32 screws

55151-K - 4" Deep Box Extension w/concentric knockout

56111 - 1/2" Deep Ceiling Pancake Box

OBEX - 1/2" Deep Extension Ring

52151-K - 1 1/2" - Deep Square Shallow Junction box w/knocouts

52171-K - 2 1/8" Deep Square junction box w/knockouts

53151-K - 1 1/2" Deep Square box extension w/knockouts

53171-ER - 2 1/8" Deep Square extension box w/knocouts

53171-K - 2 1/8" Deep Square extension box w/knocouts

72171-K - 2 1/8" Deep Square extension box 4 11/16'' Square w/knockouts

72171-1 - 2 1/8" Deep Square box with 1" Knockouts

73151-K - 1 1/2" Deep Square extension box 4 11/16'' Square w/knockouts